USCIS uses numerous types of Form I-797 to communicate with customers or convey an immigration benefit. Form I-797 is NOT a form you can fill out. The chart below gives a brief description of each:
Form Number
Description
I-797, Notice of Action
Issued when an application or petition is approved.
I-797A, Notice of Action
Issued to an applicant as a replacement Form I-94.
I-797B, Notice of Action
Issued for approval of an alien worker petition.
I-797C, Notice of Action
Issued to communicate receipt of payments, rejection of applications, transfer of files, fingerprint biometric, interview and re-scheduled appointments, and re-open cases.
